Apparatus for forming concrete floors



4Jan. 8, 1935. H, w, R005 1,987,216

APPAR OOOOOOOOOOOOOOOOOOOOOOOOOO RS n Filed Jan. 17, 195o 4 sheets-*sheet 1 L VlilIi-f "'Q il IMM! l A .MIM

M) Q l* l his ATTORNEY Jan. s, 1935. Hf w, ROOS 1,987,216

APPARATUS FOR FORMING CONCRETE FLOORS Filed Jan. 17, 1950 4 ShtetS-Shee'fl '2 7111's ATTORNEY v Jan. 8, 1935.

H. w. Roos 1,987,216

APPARATUS FOR FORMING CONCRETE FLOORS Filed Jan. 17, 1950 4 Sheets-Sheet 3 ivlllllli y l 1 INVENTOR YQn his ATToRNEY Jan. 8, 1935. w. 'Roos K APPARATUS FOR FORMING CONCRETE FLOORS 4 Sheets-Sheet 4 Filed Jan. 17, 1950 Patented Jan. 8, 1935 This invention relates tofapparatus forforming 1y on Vline 6,-f6 ofFig-,ure `aand looking in the concrete floora, and particularly toapparatus direction ci this arrowsatsaidline, for forming concrete, beams andgirders for rein,- UFigure' is: aninverted perspectirve.-V viewof dis.- forcing the floor. assembledv partsshown. iii-Figure .5 l'Ihe principal obiect of theinventionis to pro- Referring to.- th e .drawings, in which similar x. 5 vide; improvedapparatus for constructing beam 4relier er-nie numerals reiger, te thesame paz-tts infall and. ginder formes' for conc-retenoors,whichare the figures, Fig-ure 1 sho-ws ancor moldiorrned light in weight, cheaply constructedyv'and which by assembling floor forms 1 of usual or Well are more quickly assembled than formsheretoknown construction, rectangularor sguare. in

1 0 ioreused. g* 1 shape: and mountedv on temporary supportsy or 1.0.

`Another object offthe invention the provision shores 2 see Figure, 2, havingbrackets 3, adapted of. special beam and girder forms which may be toI releasably engage adjacent forms at or near readily and quicklyv assembled. intheiioor mold their corners. The brackets 3; are. provided with on temporary supportsl outward-ly inclined engaging; members adapted-t0 l@ A. further-object of. the invention is to provide cam adjacent forms. intol close engagementwith 115;, aform, for moldingvv beamsor girdersy which may eachother. The.y forms 1- are assembled inalined be readily constructed of separate parts and as'- rovvs.;.both/.longitudinally and transversely, and sem-bled in the floor mold-as aunit on. temporary formsa,dgaptedrtor moldl a girder such: shown Suppois- 1 at figmay be. mounted between two transverse 2 0. Still. another. object of theinvention is the rows otzformsf 1, and forms adapted-to mold. a 2 0 provision- `of forms for .molding beams o rgirders. beam such as'` shown at. 5 may be mounted be,- which are adjustable: to provide for the formationtween two.y longitudinal rows ofqformsl. Atthe of beams or girders of different depths for the outside of .the iioor at (iisl shown a. mold for an construction of floors adapted to carry different outside beam-or. linteLandat.- 7;, wherefthegirdcr 25 loads. l 4 1 intersects. the beam or lintel 6, is shownarper: 2 5

Another object ot the invention is the conmanent support or vertical` column.; f. I structionofioor forms including beamand girder The formsv for the beams and. girders are snbformsl which can bereadily assembled on ternstantially similar in construction, andl onlyone porary supports or shores to ferm a floory mold, will be described in detail. Eachof said forms 3 0. and which ycan be readily removed from beneath comprises vertical side walls 10,1ancfl 11.` preferably 3Q the vconcrete door beforethe concrete has en-- construe-teder sheetmaterial;andavbottonrwall tirely-'set and without removing the shores, which 1Z secured` between. and, connecting thenr., The are thnsleftl to support the concrete. bottom wall, has downwardlyprojectingyfianges T othese. and other ends, the invention'con-` 13; atjts.,sidesfwhichengagethe inner walls `oii 3 5.-v sists in the-construction and arrangement of partsr the-side membersl and 11jandto which itis se- `35 that will appear. from the followingv description eure'dbyr any suitable means, as by the. bolts la when read. in conjunction with the accompanying- Secured to the outer Walls of the.A side mem-bers drawings, the novel. features being pointed out andv ilush withvthei-r upper edges: are laterally in the claims following; the specication. extending lforms 15 having depending marginal 40 IIL the drawings: s flangesy 16 wherebytheymay befsecuredytoy the 4Q Figure 1 is a. fragmentary plan View of a floor side members 10L and r11 by means of bolts or. u moldconstructed according to one embodiment otherfsuitable means. The flanges 1 6 also. serve.` oi lthe invention; t f to reinforce the formsy 15v which may be further Figure 2 isa vertical section of they same taken reinforced by .transversely extending, bars 17 45- substantially online 2 2 of Figure. 1, and looking weldedtofthe bottom thereofv see, Figure 10. The e5 inthe direction of. the arrows at said line; forms `1 5. are roughlmT-shaped in out1ine, `a1.-

Figure; 3V isa section on. line 3;-3 of Figure 1, though otheriorins are'sometirnes. required'toyll looking in the direction otthearrowsratsaid line; inthe mold for ancor... g a g 1 y Figure 4 is Van inverted -plan'view, the tezn-` The forms 15. are of alength substantially equal 5.Q porary sup-ports or shores being sectioned away to the( sides o fthe forms l,l and have openings 50 substantially on line 4 4 of Figure 2; f l at. their corners adapted to nt aroundthe topsl Figure 5 is a fragmentary .plan view showing 1637er the temporary supports: or shores; 2, having" a, beam mold mounted in a slightly different manthe brackets 3 which releasably engage the ner; corner flanges of the forms and support them with 55 Figure 6 is a vertical section taken substantieltheir upper surfaces in the plane of the forms 1. 55

, Since the beams and girders tobe formed are not uniformly of the same vertical depth, it is desirable to provide beam or girder forms with whichbeams' org'irders ofvariousdepths may be formed. Forithis purpose, the sides 10and`11 of the beam forms may be provided with alined openings 22, see Figures 2 and 6, in a plurality of horizontal planes, Whichthe bolts 14 vmay-enf- 5, y

l `beam or girder where the joists form into'it. In

Figures 5, 6and `'Tis shown a beam form asgage to secure the bottom wal112 in anyone; of

several horizontalrplanes between the sidewalls 10 and 11. v

If desired, the lateral edgesof the bottom wall may be reinforced by means of angular strips 13, The side and bottom walls may also bereinforced by means of reinforcing strips welded thereto at suitable intervals, a'sfshown in Figure f1. Afreinforcing strip may be'provided at each of the ends ofthev sidewalls having an outwardly projecting flange 25. 1 The' y flangeV 25 on adjacent forms, lie

"in close contact'witheach other and may be provided with 'openings v'for the receptioniof bolts, whereby the`V adjacent forms may be secured to each other. v `1 Y Referring to Figure 1, it will be noted that the beamand girder molds cross' each4 other at substantially right angles,v and on reference to Figure 2, it will be seen that inthe construction illustrated, the girder is of greatervertical depth than ther beams. As a result, openings are-formed between the ends rof the bottoms of'thebeam'form's and theend's of th'egirder forms.- These openings may" be closed by means `of a substantially U-shaped form 2610i:V sheet material arranged over the opening', between the ends ofthe'girder forms onwhich it'issuppo'rted -The sideY walls ofthe rfornfiQZ engage the inner walls of the adjacent 'girder formsand* continue the Vsame over the d openings beneathfthebottoms ofthe adjacent beam forms. V If desir-edf these'forms can be secured to angles secured tothe ends of the .beam forms: by bol'tsor othersuitable means.'A 'd n jThefoutside beam-or lintel 6 previously referred to is formed very'rnuch like the girder 4, both Vci! which are shown builtinto the head of the column 7,- Referring to Figure 2"it will be seenthat the lintel comprises anf-innerV -wall l2'7, an `euter'fwall 28, anda bottom wall v29 having'downwardly"pro-4 jecting flanges 430 vwhereby it' maybe secured to theV innerfand outer walls in "the'manner f of the beamsV- andf-girdersj -Theinner wall27 may be secured to the flange of a T-'form 15 adapted to bey mounted on'the shores 2 with its upper'face substantially` in the vplane ofthe forms 1. 4 [The outer wallrisesvertically from the outer edge of the bottom wall/to a'point `where, its upper edge is'at least ,as high as the plane of `theflnislfied floor, that is, it rises above the inner wall adistancejequalat least tothe" thickness of the floor to b e formedfThe forms for the lintel may be supported Vin anysuitable manner or directly on the .tops'foffntemporary supports Lor shores 31, as shownin'the drawings; orthe bottom of the forms may benotched out to rit-around the top of the shore and `be supported in thevr bracketsin'a manner similar to that in which the forms 1 and" 15 are mounted, so that the forms may beremoved withoutdistubing the 'shores on which the con.

-a depending marginal ange.

crete is supported. The outer wall is ,anchored against outward movement under the pressure of the concrete by means of exible cords or wires 32 connected thereto land secured to the inner wall, as usual in the art;

It frequently vhappens that it is desirable to have aspace between the adjacent forms 1 which laying a heavy floor on 'dome forms, it is some-A timesdesirable to .widen the upper part of the sembled toifit in sucha space, and comprises a narrowrectangular form `35 constructed in al1 respects like theform 15 except in shape, and has The side of the beam form may be secured to one of its lside 'iianges anda AT-shapedfformtoitsiother side flange, and the assembled beam form mounted on the shores-2 as previously described. v

In Figure 7, avslightly` modiedfffo'rm 36v ofthe T-form is shown-having open/rectangular ropenings 37r adjacent its'ends to V:tit and fill Vthe space around three sides of the shore head.' Such forms are found convenient in forming agirder into a beam,-1inte1"or columnpas will be noted from ran inspection of Figure 1. It willbe understood that the forms 35 may be madeiin various widths or adjustable in width'to meet various requirements,

orfthatlmore-thanv one of them may be used on' each side of the beam form, or thatit'may be used on one-side of the beam `form and omitted fromthe otherside tomeet ever-changing conditions y fr. Although the invention vhas been described with reference to certain details of construction, it Will be understood that this application is intend? ed to'cover such changes'or modifications as come within the spirit of the invention or scopeof the following claims. Y

yIclaimz'- 1. An apparatus for formingconcrete floorscomprising shores having tops, a plurality ofy substantially rectangular Afloor formsl constructed of sheet material and adapted` to `be :detachably mounted on said shores in the plane of and-around k thetops of the shores and inalined rows arrangedy substantially,"perpendicular to each other,v anda plurality" of beam forms' constructed of sheet' material and provided with members adapted to be detachably mounted onvsaid shores in' the plane of the tops of the shores and of the floorforms and `betweenadjacent rows thereof, said members Ybeing formed tovt around the tops of the shores". v2. An apparatus `for forming concrete floors comprising shores having tops, a plurality of oor forms constructed of sheetr material and adapted to` be vdetachably mounted on said shores in the plane of and around the tops of the shores, and

aplurality of beam forms adapted to be detachablyV mounted on said shores between the floor forms and each comprising a pair of members adapted to be detachably mounted on said shores in the plane of the tops of the shores andformed to fit around the topsof' said shores, side walls' secured to and depending from said members, and a bottom wall arranged between and detachably secured to said side walls. f

' f f HENRY W. ROOS.' 

